 | Add a new slide |
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In the navigation pane, click the slide that you want to insert the new slide after.
How to select slides in the navigation pane
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On the Home tab, under Slides, click New Slide.
Tip To choose a layout for the slide, click the arrow next to New Slide, and then click the layout that you want.
tab, and then click a slide.
and 
named tabs or the 
icon tabs.